Base | Representation |
---|---|
bin | 1010010111111… |
… | …01010010000100 |
3 | 20001202002221000 |
4 | 11023331102010 |
5 | 134234130201 |
6 | 12345053300 |
7 | 2104443411 |
oct | 513752204 |
9 | 201662830 |
10 | 87020676 |
11 | 45136a16 |
12 | 25187230 |
13 | 1504ab32 |
14 | b7b3108 |
15 | 798dd86 |
hex | 52fd484 |
87020676 has 48 divisors (see below), whose sum is σ = 226195200. Its totient is φ = 28931616.
The previous prime is 87020663. The next prime is 87020699. The reversal of 87020676 is 67602078.
It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a self number, because there is not a number n which added to its sum of digits gives 87020676.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54181 + ... + 55763.
It is an arithmetic number, because the mean of its divisors is an integer number (4712400).
Almost surely, 287020676 is an apocalyptic number.
It is an amenable number.
87020676 is an abundant number, since it is smaller than the sum of its proper divisors (139174524).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87020676 is a wasteful number, since it uses less digits than its factorization.
87020676 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2105 (or 2097 counting only the distinct ones).
The product of its (nonzero) digits is 28224, while the sum is 36.
The square root of 87020676 is about 9328.4873371839. The cubic root of 87020676 is about 443.1398614352.
Adding to 87020676 its product of nonzero digits (28224), we get a square (87048900 = 93302).
The spelling of 87020676 in words is "eighty-seven million, twenty thousand, six hundred seventy-six".
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